1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA
5 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
7 * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org>
10 #include <linux/init.h>
11 #include <linux/interrupt.h>
12 #include <linux/pci.h>
13 #include <linux/slab.h>
14 #include <linux/module.h>
15 #include <linux/bitops.h>
17 #include <sound/core.h>
18 #include <sound/pcm.h>
19 #include <sound/pcm_params.h>
20 #include <sound/control.h>
21 #include <sound/initval.h>
23 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
24 MODULE_DESCRIPTION("Brooktree Bt87x audio driver");
25 MODULE_LICENSE("GPL");
26 MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878},"
27 "{Brooktree,Bt879}}");
29 static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
30 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
31 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
32 static int digital_rate[SNDRV_CARDS]; /* digital input rate */
33 static bool load_all; /* allow to load the non-whitelisted cards */
35 module_param_array(index, int, NULL, 0444);
36 MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
37 module_param_array(id, charp, NULL, 0444);
38 MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
39 module_param_array(enable, bool, NULL, 0444);
40 MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
41 module_param_array(digital_rate, int, NULL, 0444);
42 MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
43 module_param(load_all, bool, 0444);
44 MODULE_PARM_DESC(load_all, "Allow to load the non-whitelisted cards");
47 /* register offsets */
48 #define REG_INT_STAT 0x100 /* interrupt status */
49 #define REG_INT_MASK 0x104 /* interrupt mask */
50 #define REG_GPIO_DMA_CTL 0x10c /* audio control */
51 #define REG_PACKET_LEN 0x110 /* audio packet lengths */
52 #define REG_RISC_STRT_ADD 0x114 /* RISC program start address */
53 #define REG_RISC_COUNT 0x120 /* RISC program counter */
56 #define INT_OFLOW (1 << 3) /* audio A/D overflow */
57 #define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */
58 #define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */
59 #define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */
60 #define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */
61 #define INT_PPERR (1 << 15) /* PCI parity error */
62 #define INT_RIPERR (1 << 16) /* RISC instruction parity error */
63 #define INT_PABORT (1 << 17) /* PCI master or target abort */
64 #define INT_OCERR (1 << 18) /* invalid opcode */
65 #define INT_SCERR (1 << 19) /* sync counter overflow */
66 #define INT_RISC_EN (1 << 27) /* DMA controller running */
67 #define INT_RISCS_SHIFT 28 /* RISC status bits */
69 /* audio control bits */
70 #define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */
71 #define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */
72 #define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */
73 #define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */
74 #define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */
75 #define CTL_ACAP_EN (1 << 4) /* enable audio capture */
76 #define CTL_DA_APP (1 << 5) /* GPIO input */
77 #define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */
78 #define CTL_DA_IOM_DA (1 << 6) /* digital audio input */
79 #define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */
80 #define CTL_DA_SDR_MASK (0xf<< 8)
81 #define CTL_DA_LMT (1 << 12) /* limit audio data values */
82 #define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */
83 #define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */
84 #define CTL_DA_DPM (1 << 15) /* data packet mode */
85 #define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */
86 #define CTL_DA_MLB (1 << 21) /* MSB/LSB format */
87 #define CTL_DA_LRI (1 << 22) /* left/right indication */
88 #define CTL_DA_SCE (1 << 23) /* sample clock edge */
89 #define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */
90 #define CTL_A_SEL_SFM (1 << 24) /* FM audio input */
91 #define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */
92 #define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */
93 #define CTL_A_SEL_SHIFT 24
94 #define CTL_A_SEL_MASK (3 << 24)
95 #define CTL_A_PWRDN (1 << 26) /* analog audio power-down */
96 #define CTL_A_G2X (1 << 27) /* audio gain boost */
97 #define CTL_A_GAIN_SHIFT 28 /* audio input gain */
98 #define CTL_A_GAIN_MASK (0xf<<28)
100 /* RISC instruction opcodes */
101 #define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */
102 #define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */
103 #define RISC_SKIP (0x2 << 28) /* skip FIFO data */
104 #define RISC_JUMP (0x7 << 28) /* jump to address */
105 #define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */
107 /* RISC instruction bits */
108 #define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */
109 #define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */
110 #define RISC_SET_STATUS_SHIFT 16 /* set status bits */
111 #define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */
112 #define RISC_IRQ ( 1 << 24) /* interrupt */
113 #define RISC_EOL ( 1 << 26) /* end of line */
114 #define RISC_SOL ( 1 << 27) /* start of line */
116 /* SYNC status bits values */
117 #define RISC_SYNC_FM1 0x6
118 #define RISC_SYNC_VRO 0xc
120 #define ANALOG_CLOCK 1792000
121 #ifdef CONFIG_SND_BT87X_OVERCLOCK
122 #define CLOCK_DIV_MIN 1
124 #define CLOCK_DIV_MIN 4
126 #define CLOCK_DIV_MAX 15
128 #define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \
129 INT_RIPERR | INT_PABORT | INT_OCERR)
130 #define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)
132 /* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */
133 #define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)
135 /* Cards with configuration information */
136 enum snd_bt87x_boardid {
137 SND_BT87X_BOARD_UNKNOWN,
138 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */
139 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */
140 SND_BT87X_BOARD_OSPREY2x0,
141 SND_BT87X_BOARD_OSPREY440,
142 SND_BT87X_BOARD_AVPHONE98,
145 /* Card configuration */
146 struct snd_bt87x_board {
147 int dig_rate; /* Digital input sampling rate */
148 u32 digital_fmt; /* Register settings for digital input */
149 unsigned no_analog:1; /* No analog input */
150 unsigned no_digital:1; /* No digital input */
153 static struct snd_bt87x_board snd_bt87x_boards[] = {
154 [SND_BT87X_BOARD_UNKNOWN] = {
155 .dig_rate = 32000, /* just a guess */
157 [SND_BT87X_BOARD_GENERIC] = {
160 [SND_BT87X_BOARD_ANALOG] = {
163 [SND_BT87X_BOARD_OSPREY2x0] = {
165 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
167 [SND_BT87X_BOARD_OSPREY440] = {
169 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
172 [SND_BT87X_BOARD_AVPHONE98] = {
178 struct snd_card *card;
180 struct snd_bt87x_board board;
186 unsigned long opened;
187 struct snd_pcm_substream *substream;
189 struct snd_dma_buffer dma_risc;
190 unsigned int line_bytes;
198 int pci_parity_errors;
201 enum { DEVICE_DIGITAL, DEVICE_ANALOG };
203 static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)
205 return readl(chip->mmio + reg);
208 static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
210 writel(value, chip->mmio + reg);
213 static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,
214 unsigned int periods, unsigned int period_bytes)
216 unsigned int i, offset;
219 if (chip->dma_risc.area == NULL) {
220 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
221 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)
224 risc = (__le32 *)chip->dma_risc.area;
226 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);
227 *risc++ = cpu_to_le32(0);
228 for (i = 0; i < periods; ++i) {
236 len = PAGE_SIZE - (offset % PAGE_SIZE);
239 cmd = RISC_WRITE | len;
240 if (rest == period_bytes) {
241 u32 block = i * 16 / periods;
243 cmd |= block << RISC_SET_STATUS_SHIFT;
244 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;
247 cmd |= RISC_EOL | RISC_IRQ;
248 *risc++ = cpu_to_le32(cmd);
249 addr = snd_pcm_sgbuf_get_addr(substream, offset);
250 *risc++ = cpu_to_le32(addr);
255 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO);
256 *risc++ = cpu_to_le32(0);
257 *risc++ = cpu_to_le32(RISC_JUMP);
258 *risc++ = cpu_to_le32(chip->dma_risc.addr);
259 chip->line_bytes = period_bytes;
260 chip->lines = periods;
264 static void snd_bt87x_free_risc(struct snd_bt87x *chip)
266 if (chip->dma_risc.area) {
267 snd_dma_free_pages(&chip->dma_risc);
268 chip->dma_risc.area = NULL;
272 static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status)
276 pci_read_config_word(chip->pci, PCI_STATUS, &pci_status);
277 pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT |
278 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT |
279 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY;
280 pci_write_config_word(chip->pci, PCI_STATUS, pci_status);
281 if (pci_status != PCI_STATUS_DETECTED_PARITY)
282 dev_err(chip->card->dev,
283 "Aieee - PCI error! status %#08x, PCI status %#04x\n",
284 status & ERROR_INTERRUPTS, pci_status);
286 dev_err(chip->card->dev,
287 "Aieee - PCI parity error detected!\n");
288 /* error 'handling' similar to aic7xxx_pci.c: */
289 chip->pci_parity_errors++;
290 if (chip->pci_parity_errors > 20) {
291 dev_err(chip->card->dev,
292 "Too many PCI parity errors observed.\n");
293 dev_err(chip->card->dev,
294 "Some device on this bus is generating bad parity.\n");
295 dev_err(chip->card->dev,
296 "This is an error *observed by*, not *generated by*, this card.\n");
297 dev_err(chip->card->dev,
298 "PCI parity error checking has been disabled.\n");
299 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);
300 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
305 static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
307 struct snd_bt87x *chip = dev_id;
308 unsigned int status, irq_status;
310 status = snd_bt87x_readl(chip, REG_INT_STAT);
311 irq_status = status & chip->interrupt_mask;
314 snd_bt87x_writel(chip, REG_INT_STAT, irq_status);
316 if (irq_status & ERROR_INTERRUPTS) {
317 if (irq_status & (INT_FBUS | INT_FTRGT))
318 dev_warn(chip->card->dev,
319 "FIFO overrun, status %#08x\n", status);
320 if (irq_status & INT_OCERR)
321 dev_err(chip->card->dev,
322 "internal RISC error, status %#08x\n", status);
323 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))
324 snd_bt87x_pci_error(chip, irq_status);
326 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {
327 int current_block, irq_block;
329 /* assume that exactly one line has been recorded */
330 chip->current_line = (chip->current_line + 1) % chip->lines;
331 /* but check if some interrupts have been skipped */
332 current_block = chip->current_line * 16 / chip->lines;
333 irq_block = status >> INT_RISCS_SHIFT;
334 if (current_block != irq_block)
335 chip->current_line = (irq_block * chip->lines + 15) / 16;
337 snd_pcm_period_elapsed(chip->substream);
342 static const struct snd_pcm_hardware snd_bt87x_digital_hw = {
343 .info = SNDRV_PCM_INFO_MMAP |
344 SNDRV_PCM_INFO_INTERLEAVED |
345 SNDRV_PCM_INFO_BLOCK_TRANSFER |
346 SNDRV_PCM_INFO_MMAP_VALID |
347 SNDRV_PCM_INFO_BATCH,
348 .formats = SNDRV_PCM_FMTBIT_S16_LE,
349 .rates = 0, /* set at runtime */
352 .buffer_bytes_max = 255 * 4092,
353 .period_bytes_min = 32,
354 .period_bytes_max = 4092,
359 static const struct snd_pcm_hardware snd_bt87x_analog_hw = {
360 .info = SNDRV_PCM_INFO_MMAP |
361 SNDRV_PCM_INFO_INTERLEAVED |
362 SNDRV_PCM_INFO_BLOCK_TRANSFER |
363 SNDRV_PCM_INFO_MMAP_VALID |
364 SNDRV_PCM_INFO_BATCH,
365 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
366 .rates = SNDRV_PCM_RATE_KNOT,
367 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
368 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,
371 .buffer_bytes_max = 255 * 4092,
372 .period_bytes_min = 32,
373 .period_bytes_max = 4092,
378 static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
380 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;
381 runtime->hw = snd_bt87x_digital_hw;
382 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);
383 runtime->hw.rate_min = chip->board.dig_rate;
384 runtime->hw.rate_max = chip->board.dig_rate;
388 static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
390 static const struct snd_ratnum analog_clock = {
392 .den_min = CLOCK_DIV_MIN,
393 .den_max = CLOCK_DIV_MAX,
396 static const struct snd_pcm_hw_constraint_ratnums constraint_rates = {
398 .rats = &analog_clock
401 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);
402 runtime->hw = snd_bt87x_analog_hw;
403 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
407 static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)
409 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
410 struct snd_pcm_runtime *runtime = substream->runtime;
413 if (test_and_set_bit(0, &chip->opened))
416 if (substream->pcm->device == DEVICE_DIGITAL)
417 err = snd_bt87x_set_digital_hw(chip, runtime);
419 err = snd_bt87x_set_analog_hw(chip, runtime);
423 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
427 chip->substream = substream;
431 clear_bit(0, &chip->opened);
432 smp_mb__after_atomic();
436 static int snd_bt87x_close(struct snd_pcm_substream *substream)
438 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
440 spin_lock_irq(&chip->reg_lock);
441 chip->reg_control |= CTL_A_PWRDN;
442 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
443 spin_unlock_irq(&chip->reg_lock);
445 chip->substream = NULL;
446 clear_bit(0, &chip->opened);
447 smp_mb__after_atomic();
451 static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
452 struct snd_pcm_hw_params *hw_params)
454 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
456 return snd_bt87x_create_risc(chip, substream,
457 params_periods(hw_params),
458 params_period_bytes(hw_params));
461 static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
463 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
465 snd_bt87x_free_risc(chip);
469 static int snd_bt87x_prepare(struct snd_pcm_substream *substream)
471 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
472 struct snd_pcm_runtime *runtime = substream->runtime;
475 spin_lock_irq(&chip->reg_lock);
476 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
477 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;
478 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
479 if (runtime->format == SNDRV_PCM_FORMAT_S8)
480 chip->reg_control |= CTL_DA_SBR;
481 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
482 spin_unlock_irq(&chip->reg_lock);
486 static int snd_bt87x_start(struct snd_bt87x *chip)
488 spin_lock(&chip->reg_lock);
489 chip->current_line = 0;
490 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
491 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);
492 snd_bt87x_writel(chip, REG_PACKET_LEN,
493 chip->line_bytes | (chip->lines << 16));
494 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
495 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
496 spin_unlock(&chip->reg_lock);
500 static int snd_bt87x_stop(struct snd_bt87x *chip)
502 spin_lock(&chip->reg_lock);
503 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
504 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
505 snd_bt87x_writel(chip, REG_INT_MASK, 0);
506 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
507 spin_unlock(&chip->reg_lock);
511 static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)
513 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
516 case SNDRV_PCM_TRIGGER_START:
517 return snd_bt87x_start(chip);
518 case SNDRV_PCM_TRIGGER_STOP:
519 return snd_bt87x_stop(chip);
525 static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
527 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
528 struct snd_pcm_runtime *runtime = substream->runtime;
530 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
533 static const struct snd_pcm_ops snd_bt87x_pcm_ops = {
534 .open = snd_bt87x_pcm_open,
535 .close = snd_bt87x_close,
536 .hw_params = snd_bt87x_hw_params,
537 .hw_free = snd_bt87x_hw_free,
538 .prepare = snd_bt87x_prepare,
539 .trigger = snd_bt87x_trigger,
540 .pointer = snd_bt87x_pointer,
543 static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,
544 struct snd_ctl_elem_info *info)
546 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
548 info->value.integer.min = 0;
549 info->value.integer.max = 15;
553 static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,
554 struct snd_ctl_elem_value *value)
556 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
558 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;
562 static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,
563 struct snd_ctl_elem_value *value)
565 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
569 spin_lock_irq(&chip->reg_lock);
570 old_control = chip->reg_control;
571 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
572 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
573 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
574 changed = old_control != chip->reg_control;
575 spin_unlock_irq(&chip->reg_lock);
579 static const struct snd_kcontrol_new snd_bt87x_capture_volume = {
580 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
581 .name = "Capture Volume",
582 .info = snd_bt87x_capture_volume_info,
583 .get = snd_bt87x_capture_volume_get,
584 .put = snd_bt87x_capture_volume_put,
587 #define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info
589 static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,
590 struct snd_ctl_elem_value *value)
592 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
594 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
598 static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,
599 struct snd_ctl_elem_value *value)
601 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
605 spin_lock_irq(&chip->reg_lock);
606 old_control = chip->reg_control;
607 chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
608 | (value->value.integer.value[0] ? CTL_A_G2X : 0);
609 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
610 changed = chip->reg_control != old_control;
611 spin_unlock_irq(&chip->reg_lock);
615 static const struct snd_kcontrol_new snd_bt87x_capture_boost = {
616 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
617 .name = "Capture Boost",
618 .info = snd_bt87x_capture_boost_info,
619 .get = snd_bt87x_capture_boost_get,
620 .put = snd_bt87x_capture_boost_put,
623 static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,
624 struct snd_ctl_elem_info *info)
626 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"};
628 return snd_ctl_enum_info(info, 1, 3, texts);
631 static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,
632 struct snd_ctl_elem_value *value)
634 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
636 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;
640 static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,
641 struct snd_ctl_elem_value *value)
643 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
647 spin_lock_irq(&chip->reg_lock);
648 old_control = chip->reg_control;
649 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
650 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
651 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
652 changed = chip->reg_control != old_control;
653 spin_unlock_irq(&chip->reg_lock);
657 static const struct snd_kcontrol_new snd_bt87x_capture_source = {
658 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
659 .name = "Capture Source",
660 .info = snd_bt87x_capture_source_info,
661 .get = snd_bt87x_capture_source_get,
662 .put = snd_bt87x_capture_source_put,
665 static int snd_bt87x_free(struct snd_bt87x *chip)
668 snd_bt87x_stop(chip);
670 free_irq(chip->irq, chip);
672 pci_release_regions(chip->pci);
673 pci_disable_device(chip->pci);
678 static int snd_bt87x_dev_free(struct snd_device *device)
680 struct snd_bt87x *chip = device->device_data;
681 return snd_bt87x_free(chip);
684 static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
689 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
692 pcm->private_data = chip;
693 strcpy(pcm->name, name);
694 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
695 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
698 ALIGN(255 * 4092, 1024));
702 static int snd_bt87x_create(struct snd_card *card,
704 struct snd_bt87x **rchip)
706 struct snd_bt87x *chip;
708 static struct snd_device_ops ops = {
709 .dev_free = snd_bt87x_dev_free
714 err = pci_enable_device(pci);
718 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
720 pci_disable_device(pci);
726 spin_lock_init(&chip->reg_lock);
728 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) {
730 pci_disable_device(pci);
733 chip->mmio = pci_ioremap_bar(pci, 0);
735 dev_err(card->dev, "cannot remap io memory\n");
740 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |
741 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
742 chip->interrupt_mask = MY_INTERRUPTS;
743 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
744 snd_bt87x_writel(chip, REG_INT_MASK, 0);
745 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
747 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED,
748 KBUILD_MODNAME, chip);
750 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
753 chip->irq = pci->irq;
755 synchronize_irq(chip->irq);
757 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
765 snd_bt87x_free(chip);
769 #define BT_DEVICE(chip, subvend, subdev, id) \
770 { .vendor = PCI_VENDOR_ID_BROOKTREE, \
772 .subvendor = subvend, .subdevice = subdev, \
773 .driver_data = SND_BT87X_BOARD_ ## id }
774 /* driver_data is the card id for that device */
776 static const struct pci_device_id snd_bt87x_ids[] = {
777 /* Hauppauge WinTV series */
778 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
779 /* Hauppauge WinTV series */
780 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
781 /* Viewcast Osprey 200 */
782 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
783 /* Viewcast Osprey 440 (rate is configurable via gpio) */
784 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
786 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
787 /* Leadtek Winfast tv 2000xp delux */
788 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
790 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC),
792 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
793 /* Askey Computer Corp. MagicTView'99 */
794 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC),
795 /* AVerMedia Studio No. 103, 203, ...? */
796 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
797 /* Prolink PixelView PV-M4900 */
798 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
799 /* Pinnacle Studio PCTV rave */
800 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
803 MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
805 /* cards known not to have audio
806 * (DVB cards use the audio function to transfer MPEG data) */
808 unsigned short subvendor, subdevice;
810 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
811 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
812 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
813 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
814 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
815 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
816 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
817 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
818 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
819 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
820 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
823 static struct pci_driver driver;
825 /* return the id of the card, or a negative value if it's blacklisted */
826 static int snd_bt87x_detect_card(struct pci_dev *pci)
829 const struct pci_device_id *supported;
831 supported = pci_match_id(snd_bt87x_ids, pci);
832 if (supported && supported->driver_data > 0)
833 return supported->driver_data;
835 for (i = 0; i < ARRAY_SIZE(blacklist); ++i)
836 if (blacklist[i].subvendor == pci->subsystem_vendor &&
837 blacklist[i].subdevice == pci->subsystem_device) {
839 "card %#04x-%#04x:%#04x has no audio\n",
840 pci->device, pci->subsystem_vendor, pci->subsystem_device);
844 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n",
845 pci->device, pci->subsystem_vendor, pci->subsystem_device);
846 dev_info(&pci->dev, "please mail id, board name, and, "
847 "if it works, the correct digital_rate option to "
848 "<alsa-devel@alsa-project.org>\n");
849 return SND_BT87X_BOARD_UNKNOWN;
852 static int snd_bt87x_probe(struct pci_dev *pci,
853 const struct pci_device_id *pci_id)
856 struct snd_card *card;
857 struct snd_bt87x *chip;
859 enum snd_bt87x_boardid boardid;
861 if (!pci_id->driver_data) {
862 err = snd_bt87x_detect_card(pci);
867 boardid = pci_id->driver_data;
869 if (dev >= SNDRV_CARDS)
876 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
881 err = snd_bt87x_create(card, pci, &chip);
885 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
887 if (!chip->board.no_digital) {
888 if (digital_rate[dev] > 0)
889 chip->board.dig_rate = digital_rate[dev];
891 chip->reg_control |= chip->board.digital_fmt;
893 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
897 if (!chip->board.no_analog) {
898 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
901 err = snd_ctl_add(card, snd_ctl_new1(
902 &snd_bt87x_capture_volume, chip));
905 err = snd_ctl_add(card, snd_ctl_new1(
906 &snd_bt87x_capture_boost, chip));
909 err = snd_ctl_add(card, snd_ctl_new1(
910 &snd_bt87x_capture_source, chip));
914 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital "
915 "(rate %d Hz)\n", dev, boardid,
916 chip->board.no_analog ? "no " : "",
917 chip->board.no_digital ? "no " : "", chip->board.dig_rate);
919 strcpy(card->driver, "Bt87x");
920 sprintf(card->shortname, "Brooktree Bt%x", pci->device);
921 sprintf(card->longname, "%s at %#llx, irq %i",
922 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
924 strcpy(card->mixername, "Bt87x");
926 err = snd_card_register(card);
930 pci_set_drvdata(pci, card);
939 static void snd_bt87x_remove(struct pci_dev *pci)
941 snd_card_free(pci_get_drvdata(pci));
944 /* default entries for all Bt87x cards - it's not exported */
945 /* driver_data is set to 0 to call detection */
946 static const struct pci_device_id snd_bt87x_default_ids[] = {
947 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
948 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
952 static struct pci_driver driver = {
953 .name = KBUILD_MODNAME,
954 .id_table = snd_bt87x_ids,
955 .probe = snd_bt87x_probe,
956 .remove = snd_bt87x_remove,
959 static int __init alsa_card_bt87x_init(void)
962 driver.id_table = snd_bt87x_default_ids;
963 return pci_register_driver(&driver);
966 static void __exit alsa_card_bt87x_exit(void)
968 pci_unregister_driver(&driver);
971 module_init(alsa_card_bt87x_init)
972 module_exit(alsa_card_bt87x_exit)